I am on Alesse combination birth control (28 day). i took all of my placebo pills and then engaged in sexual intercourse during my fertile window 5 days after my last period. I took all of my active pills at the correct time during those 5 days except for the day i had sex, which i took that pill an hour late. I know another form of birth control is needed when beginning a new pack of pills. We used a condom but he pulled it off at one point because it was uncomfortable, but put it back on which i know is not safe. what is the percentage or the chances of becoming pregnant? I have been experiencing symptoms of pregnancy 2 days before my period will begin and have taken a pregnancy test 14 days after ovulation date which was negative. Is it too early to test?